I have one requirement to update the customer first name and last name in address information section. I tried through csv file import/export method but it only update in account information section not in address information such as billing and shipping address in admin panel(customer->manage customer section).
Currently few records in customer information section are present with lastname combine in firstname section (e.g firstname:- testtest1 and lastname:- blank instead of firstname:-test and lastname: test1)
and I want to split the firstname and lastname separately in address information section too.
So how should I proceed to solve this query to my bulk of customer.